Incandescent gas-burner for inverted and upright incandescent lights.



F. KRATKY. INGANDESOENT GAS BURNER FOR INVERTED AND UPRIGHT INGANDESOBNT LIGHTS. APPLICATION FILED .TAN.24, 1907.

Patented May 31, 1910.

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F. KRATKY.

INGANDESCENT GAS BURNER FOR INVEETED AND UPRIGHT INOANDESOENT LIGHTS.

APPLICATION FILED JAILM, 1907. 959,?69a

Patented May 31, 19 10.

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Wit away F. KRATKY. INGANDESGENT GAS BURNER FOR INVERTED AND UPRIGHT INOANDESGENT LIGHTS.

APPLICATION FILED JAE. 24, 1907.

Patented May 31, 1910.

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ii iiizesswz FRANZ KRATKY, OF VIENNA, AUSTRIA-HUNGARY.

INCANDESGENT GAS-BURNER FOR INVERTED AND UPRIGI-I'I INCANDESCENT LIGHTS.

To all whom "it may concern:

Be it known that I, FRANZ KRATKY, a citizen of Austria, residing at Vienna, Lower Austria, Empire of Austria-Hungary, have invented certain new and useful Improvements in Incandescent Gas-Burners for Inverted and Upright Incandescent Lights, of which the following is a specification.

This invention relates to incandescent gas burners burning both inverted and upright and refers more especially to a regulating disk which is adapted to be moved away from and toward the rear external mouth of the mixing chamber.

This invention has for its primary object according to the type of the draft and protective glass chimneys used to enable the internal air supply and the external air supply to be fed to one point only of the burner and also, according to the distance of this disk from the mouth, to determine the cross sectional area of the air inlet or eifect the regulation of the air supply; furthermore it serves as a wind guard and, in the case of inverted lights, it serves to prevent foreign bodies from falling into the mixing nozzle.

The drawing shows several constructional forms or methods of arrangement of the burner for vertical and upright light.

Figure 1 is a section of an inverted lamp wherein the mixing nozzle is closed toward the rear and the feeding of the entire quantity of air takes place through the lower aperture in the glass globe. Fig. 2 is a part sectional inside view of the air chamber surrounding the mixing chamber. Fig. 3 shows a similar burner to that of Fig. l with the whole quantity of air required fed through the apparatus, the glass globe being completely closed. Fig. 4 is an end elevation of the air chamber surrounding the' mixing chamber. Fig. 5 shows the same burner as Fig. 1 but in the present case all the air required is fed over the gallery around the edge of the closed glass globe. Fig. 6 is the same burner as Fig. 5 for diifusive lighting. Fig. 7 is a sectional elevation showing the construction of an ordinary inverted Auer burner for diifused light. Fig. 8 shows the same burner as Fig. 1 for use with a vertical light. Fig. 9 is a somewhat modified constructional form thereof, and Figs. 10 and 11 show the arrangement and method of operation of the regulating disk, applied to an ordinary Auer incandescent burner.

Specification of Letters Patent.

Application filed January 24, 1907.

Patented May 31, 1910. Serial No. 353,810.

In all its constructional forms the burner consists of an injector tube a, amixing chamber 0 surrounding the same and provided with air inlets Z), and the mixing tube e carrying the burner head cl.

Inusing the burner for inverted light the mantle f is carried in the usual manner by the burner head 03, a crutch 9 being used for this purpose in the case of an upright light. Now according to the present invention there is arranged upon the injector tube a a disk 9 the size and shape of which corresponds to the rear aperture 7) of the mixing chamber c, and which can be moved toward or away from the said aperture. Whether the disk is to lie close to the mouth of the mixing chamber and close it, or if it is to leave it free, depends upon the type of air supply and upon the draft and protecting glass or chimney used. The supply of the entire quantity of air required (mixing air and air for combustion) takes place at a single point. To this end the mixing chamber 0 is surrounded at a suitable distance by a so jacket 7b which leaves between it and the mixing chamber an air space i which communicates by means of tubes j (Figs. 1 and 2) or of an annular space j (Figs. 3 and 4) with a chamber comprised within the glass globe m; the annular space is formed by the jackets l1. and Z". The tubes j or the jackets h, in, pass through the bottom piece of a gal lery 'n, which, whether the burner be used for inverted or upright light, may serve for carrying the glass globe m. At its rearward end the jacket it has a flange-like extension 0 with a turned down rim 0, which serves to protect the lamp from dust falling down and also as a reflector, and if necessary it serves to carry the glass globe (Fig. 8) The plate q adjustable on the injector tube a not only closes the mouth 7) of the air chamber 0 or opens it, but is also intended to prevent the direct penetration of gusts of wind prejudicial both to the mantle and the globe, while with inverted light it prevents foreign bodies from falling into the mixing chamber.-

The drawing shows the position of the regulating disk opposite the mouth of the mixing chamber in accordance with the method selected of feeding the burner. Ac cording to Fig. 1 the regulating disk Q may be screwed down into the mouth 7). The globe at is carried by the gallery at provided 110 with supports w. Upon the mixing tube 6 is mounted an adjustable cap a having opening 14. s is an opening in the jacket is. In the inverted arrangement seen in Fig. 1 the cap a is adjusted to uncover the opening 8, and said cap it then serves to catch the ascending gases of combustion which are guided through opening a into the opening 8. The air passing through the aperture m in the globe at passes on the one side direct to the illuminating surface of the mantle and on the other side through the tube 7' or annular space into the air chamber 2', whence it is sucked up through the opening I) of the injector tube 0 by the current of gas which carries it, along into the mixing tube e. At the same time the mixed air is suitably heated, whereby better combustion and greater lighting power is obtained.

In a modified construction according to Fig. 3 the gas burns in a completely closed glass globe. In this case the regulating disk g is screwed back out of the air chamber aperture 29, and the whole quantity of air flows through a passage 1" directly into the mixing chamber 0, thence a part of this air is carried along by the stream of gas into the mixing tube '6, while the other portion is conveyed, by the suction action set up in the closed globe m by the escaping gases of combustion, through the openings 1) of the mixing chamber into the next chamber 2' and thence through the tube into the inte rior of the glass globe, whereby a very steady flame and a perfect combustion of the mixture of air and gas are realized.

According to Figs. 5 and 6 the air supply is effected around the edge of the globe on which in Fig. 5 is carried by a non-perforated gallery it but upon which it does not bear closely while in Fig. 6 the globe is supported from a reflector Z against which latter it does not fit closely; in Fig. 5 the air passes through the space between the glass globe and the gallery on the one hand to the mantle, and in Fig. 6 the air pass-es through the tube j into the air chamber c' and into the mixing chamber 0. In every case the escape of the gaseous products of combustion,which rise upward in the space inclosed by the inner jacket 70, takes place through an opening 8 or through pipes 2? attached to the jacket 70.

In Fig. 7 I show the application of my invention to an Auer inverted burner wherein a reflector Z is used serving as a support for the globe at and shaped to provide the central tube-like extension u which conducts the products of combustion to the pipes t.

The burner according to Fig. 1 can be used right away, without adding or removing any parts, for upright light as shown in Fig. 8, only the opening 3 through which the waste gases of combustion escape in the case of inverted light, must be closed and instead of the globe m open at the bottom a lamp chimney a must be placed on the supporting ring v provided on the gallery for the purpose. In the case of upright light the cap a is pushed back into the jacket is and fastened there whereby itcloses the opening .9. The arrangement is such that the jacket is serves at the same time as a device to catch any parts of the mantle that may fall off, so that they can never find their way into the mixing chamber 0. The inner side of the cap a is preferably made bright so that, in the case of inverted light, it can also act as a reflector. As the mouth 2) of the air chamber 2' is closed by the plate 9, the air flows around the gallery n and the lower edge of the lamp chimney .2 carried by a ring to and is dis tributed on the one side through the tube in the air chamber 2' and to the injector tube 0 and on the other side in the interior of the lamp chimney a to the mantle f. The flange like extension 0 of the jacket it can at the same time be used as a support for a protect ing glass 1 of'tulip or bell shape.

Fig. 9 shows a modified form of the burner for upright light the gallery n being omitted, and the outer jacket h of the air chamher i is provided with a supporting ring a; for the chimney a. In this case on screwing back the regulating disk g the whole supply of air enters through a slot 7" into the air chamber 2' whence, as in the modification according to Fig. 3, it distributes itself in the mixing chamber 0 and through the tube y' to the mantle f. The distance of the disk g from the mouth regulates the quantity of the air to be sucked up. In this case also the turned up edge 0 of the flange 0 can be used for carrying a fancy globe or a shade y or also the lamp chimney z itself when there is no supporting ring a: on the acket h.

Figs. 10 and 11 show the arrangement of the regulating disk to the simple upright Aner burner, the arrangement being such that the under edge of the mixing chamber 0 itself is broadened to a flange 0 and its mouth p can be regulated or closed by the plate 9, while the edge 0 of the flange serves to carry the lamp chimney .2. Now according as asolid (Fig. 10) or a perforated lamp chimney a (Fig. 11) is used, the regulating disk or the mouth p of the mixing chamber is kept open or closed and, in the former case, by suitably adjusting the disk 9 opposite the mixing chamber the supply of air can also be regulated to correspond to the gas pressure.

The type of air supply depends upon local conditions. In places where there is a low gas pressure the feed of air is preferably through a slot 1" between the closing plate 9 and the mouth p of the air chamber as then, especially with upright burners, the draft action of the lamp chimney supports the action of the injector tube, while for instance with a suflicient gas pressure, but with an arrangement of the lamp in places where it is subjected to strong drafts the air supply is carried out best around the gallery n.

What I claim is 1. An incandescent gas burner as described comprising a mixing tube, an injector tube, a mixing chamber carried by the mixing tube and surrounding said injector tube and having air inlets, and also having an external mouth or aperture p, a disk 9 adjustable toward and from the aperture p for closing and opening the latter as described, and a jacket h surrounding the mixing chamber and leaving an intervening air space and having a flange-like extension 0 for the purposes set forth.

2. An incandescent gas burner as described comprising a mixing tube, an injector tube, a mixing chamber carried by the mixing tube and surrounding said injector tube and having air inlets and also having an external mouth or aperture p, a disk 9 adjustable toward and from the aperture p for closing and opening the latter as described, a jacket 72, surrounding the mixing chamber and leaving an intervening air space, tubes j communicating With the said air space, a jacket in surrounding the mixing tube and having an opening 8, and a cap a adjustably mounted on the mixing tube and adapted to cover and uncover the openin 's.

ln testimony whereof I have aifixed my signature in presence of tWo Witnesses.

FRANZ KRATKY.

Witnesses:

WVILHELM ZoRGnR, ALVESTO S. Hoonn. 

